Home / 28,162.10-38,870.62-16,838.30

Finding the Fourth Proportional to 28,162.10, 38,870.62 and 16,838.30

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Solution

The fourth proportional to 28,162.10, 38,870.62 and 16,838.30 is: 23,240.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,162.10 : 38,870.62 = 16,838.30 : x
  2. Step 2: Convert to fraction form
    28,162.10/38,870.62 = 16,838.30/x
  3. Step 3: Cross multiply
    28,162.10x = 38,870.62 × 16,838.30
  4. Step 4: Simplify right side
    28,162.10x = 654,515,160.75
  5. Step 5: Solve for x
    x = 654,515,160.75/28,162.10
  6. Step 6: Final answer
    x = 23,240.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.